231604023 has 8 divisors (see below), whose sum is σ = 352920448. Its totient is φ = 132345144.

The previous prime is 231604019. The next prime is 231604027. The reversal of 231604023 is 320406132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (231604019) and next prime (231604027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231604023 - 2² = 231604019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 11028763 = 231604023 / (2 + 3 + 1 + 6 + 0 + 4 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231604027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5514361 + ... + 5514402.

It is an arithmetic number, because the mean of its divisors is an integer number (44115056).

Almost surely, 2^231604023 is an apocalyptic number.

231604023 is a deficient number, since it is larger than the sum of its proper divisors (121316425).

231604023 is a wasteful number, since it uses less digits than its factorization.

231604023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028773.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231604023 is about 15218.5420786618. The cubic root of 231604023 is about 614.1135778955.

The spelling of 231604023 in words is "two hundred thirty-one million, six hundred four thousand, twenty-three".